Melbourne mum weeps after being reunited with missing seven-year-old son

A Melbourne mum has broken down in tears after she was reunited with her seven-year-old son, who went missing overnight.

9NEWS reporter Melanie Slade spotted Xavier Jones in between live crosses on the missing boy.

"Is your name Xavier", Ms Slade ask and he replied "yes".

Police believed the boy, who suffers from a medical condition and had just undergone surgery, may have been heading to a nearby skate park with his scooter. (9NEWS)A Melbourne mum has broken down in tears after she was reunited with her seven-year-old son, missing overnight. (9NEWS)

Xavier was last seen at an address on Isla Street, Glenroy, about 6pm last night.

His family raised the alarm not long after.

Police believed the boy, who suffers from a medical condition and had just undergone surgery on his neck, may have been heading to a nearby skatepark with his scooter.

Authorities feared Xavier may have stumbled into a lake at the nearby Northern Golf Club.